Artwork showing the severe depletion or "hole" in the ozone layer over Antarctica (white landmass). The ozone layer absorbs most of the Sun's ultra- violet (UV) radiation; it occurs at an altitude of 14-24km,but is most concentrated at 17-21km (shown in white). The hole lets through the UV (purple). Altitudes are given by a Boeing 727 (12km),a Concorde (15km),& the ER-2 research plane (18km) used by NASA to investigate the hole. The hole first appeared in 1980,& has grown more severe each year. It is a seasonal phenomenon that occurs in the Antarctic spring. It is probably due to atmospheric pollution by chlorofluorocarbons (CFCs),chemicals used in aerosols & refrigerants. This is the version WITH the lettering naming the three aircraft. Version without lettering is | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gilbert, Michael |
Bildgröße: | 3498 px × 4995 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |